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The efficiency of a carnot engine operating with reservoIRR temperature at 100c and 7c will be

The efficiency of a Carnot engine operating with reservoir temperature at 100 degrees and 7 degrees will be Solution: Converting... View Article

An object is vibrating at a frequency of 60hz calculate the time period of the vibrations produced for the same

An object is vibrating at a frequency of 60hz. Calculate the time period of the vibrations produced for the same.... View Article

Three resistors are connected to form a t shape network as shown in the figure the current through the resistor 8r is

Three resistors are connected to form a T- shaped network as shown in the figure. The current through the resistor... View Article

What is the angle of projection?

For a particle projected with speed of 20 m/s from ground, the kinetic energy at top most point of trajectory... View Article

What is the greatest number by which 1037 and 1159 can both be divided exactly?

As we know, 1037 = 17×61 1159 = 19×61 Hence, the HCF of 1037 and 1159 is 61. Therefore, the... View Article

what is the square root of 353?

The square root of 353 is approximately equal to 18.788. As we know, the square root of 353 is a... View Article

Convert 0.05 into fraction.

0.05 in fraction is 1/20. Explanation: First, write the given number as a fraction. (i.e.) 0.05/1. Since, the number 0.05... View Article

Convert 75 into binary.

75 in binary is 10010112 Explanation: To convert 75 into binary, follow the below steps: Step 1: Divide 75 by... View Article

Rahul bought a sweater and saved Rs. 20 when a discount of 25% was given. What was the price of the sweater before the discount?

Let the price of the sweater before the discount be “x”. Hence, 25% of x = 20 (25/100) of x... View Article

If the HCF of 85 and 153 is expressible in the form of 85m -153, the value of m is

(a) 1 (b) 2 (c) 3 (d) 4 Solution: Correct Answer: Option (b) 2 Explanation: HCF of 85 and 153... View Article

If nth order square matrix A is a orthogonal, then ∣adj(adjA)∣ is

(a)always -1 if n is even (b) always 1 if n is odd (c) always 1 (d) none of these... View Article

What is the value of 3 power -2?

The value of 3 power -2 is 0.1111. We know that 3 power -2 means 3-2. 3-2 is written as... View Article

The number of all possible triplets (a1, a2, a3) such that a1 + a2 cos (2x) + a3 sin^2 (x) = 0 for all x is

(a) Zero (b) One (c) Three (d) Infinite Solution: Correct Answer: Option (d) Infinite Explanation: Given: a1 + a2 cos... View Article

What is a homogeneous differential equation?

The homogeneous differential equation is a differential equation, which is formed using the homogeneous function. That is, the differential equation... View Article

Let y = (A + Bx)e^(3x) is a solution of the differential equation(d^2y)/dx^2 + m(dy/dx) + ny = 0; m, n ∈ I, then find m and n.

Given,y = (A + Bx)e3xDifferentiating w.r.t x on both sides,dy/dx = 3(A + Bx)e3x + Be3xAdding my on both sides,(dy/dx)... View Article

Solve: 2(sin x – cos 2x) – sin 2x(1 + 2 sin x) + 2 cos x = 0

2(sin x − cos 2x) − sin 2x(1 + 2 sin x) + 2 cos x = 0 ⇒ 2... View Article

If am = bl, then find whether the pair of linear equation ax + by = c and lx + my = n has no solution, a unique solution or infinitely many solutions.

Given, am = bl a/l = b/m….(i) And the given pair of linear equations are: ax + by = c... View Article

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